respond: signer=hashkeycloud_mpc.testnet, request=SignatureRequest { tweak: Tweak([219, 168, 68, 128, 219, 92, 120, 51, 228, 10, 113, 57, 202, 242, 53, 98, 58, 18, 212, 95, 163, 11, 30, 1, 27, 145, 164, 100, 243, 254, 131, 159]), payload: Ecdsa(BoundedVec { inner: [185, 110, 121, 252, 147, 214, 238, 93, 100, 231, 21, 200, 33, 239, 199, 167, 157, 139, 127, 171, 18, 235, 134, 103, 16, 202, 123, 244, 25, 251, 36, 9], witness: NonEmpty(()) }), domain_id: DomainId(0) }